Suppose a group of veterinarians are investigating whether neutering Golden Retrievers have increased the cases of various forms of cancer. Suppose a random sample of 50 Golden Retrievers which were not neutered was enrolled in a study and at the end of the years long study, the mean is calculated. A mean of 12.25 years was obtained as the mean from the sample and the sample standard deviation was 1.5 years. The mean of the lifespan of Golden Retrievers in general is reported to be 11.58 years. Set up and conduct a hypothesis test for whether the lifespan of Golden Retrievers who have not been neutered is significantly higher than the general population of Golden Retrievers. Use a 5% level of significance. Show the correct hypotheses. State either a confidence interval or the p-value to support your conclusion. State your conclusion